Upgrade in-document custom elements when an element is defined.

third_party/WebKit/Source/core/dom/custom/CustomElementReaction.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CustomElementReaction_h
 #define CustomElementReaction_h
 
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
-#include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class Element;
 
 class CORE_EXPORT CustomElementReaction
     : public GarbageCollectedFinalized<CustomElementReaction> {
-    WTF_MAKE_NONCOPYABLE(CustomElementReaction);
+    DISALLOW_COPY_AND_ASSIGN(CustomElementReaction);

[yosin_UTC9, 2016/06/02 02:02:18]

Sorry for confusion.

Oops, usually DISALLOW_COPY_AND_ASSING() is at bottom of class. I'm not sure
whether PRESUBMIT checks this for Chromium or not.
Since, discussion of DISALLOW_XXX() is still on going, whether remove or keep.
It is better to keep WTF_MAKE_NONCOPYABLE() for existing files.

 public:
     CustomElementReaction() { }
     virtual ~CustomElementReaction() { }
     DEFINE_INLINE_VIRTUAL_TRACE() { }
     virtual void invoke(Element*) = 0;
 };
 
 } // namespace blink
 
 #endif // CustomElementReaction_h